Y2K Player Get the app

An Audacity alternative online —
for one job, not every job

Change a song's speed, pitch, and reverb in the browser with live preview, and keep Audacity for actual editing. No upload, no account.

  • Tempo & pitch, linked
    50–200%, like a record — drag either slider, hear it live.
  • Nothing uploads
    The song never leaves your device. No server, no account, no queue.
  • Free export
    MP3 or WAV, the whole song, rendered in seconds.
  • Real reverb
    Six rooms, small to large, with a mix control.
  • Any common format
    MP3, M4A, WAV, FLAC in; MP3 or WAV out.
  • The app goes further
    Library, playlists, visualizers, video export — free on iPhone & iPad.

The app

This tool comes from a full music player.

Y2K Player is a music player for iPhone and iPad. It plays your own files at any speed, remembers the settings for every song, and has themes that change how the whole app looks. Every phone in this row is the same app with a different theme.

Visualizers

Visualizers drawn live from the music.

While a song plays, the app can show a visualizer generated from the audio in real time. You can switch visualizers during the song, and the app’s video export uses them as the background.

Free on the App Store
Download on the App Store

Audacity is a full editor. This is not. That is the point.

An honest Audacity alternative has to start by admitting what Audacity is: a free, complete desktop audio editor. Cutting, splicing, multitrack work, a deep effects list — it does all of it, and this browser tool does none of it. What this tool does is one job: change a song's speed and pitch, add reverb, and export. For that one job, it is faster in ways that are easy to verify.

This tool and Audacity, compared for the specific job of speeding up or slowing down a song. A dash means not applicable or unverified.
RowThis toolAudacity
PriceFreeFree
InstallNone — runs on this pageDesktop install required
ScopeOne job: tempo, pitch, reverb, exportFull editing suite — cutting, multitrack, deep effects
Hearing the speed changeLive — playback follows the slider while you dragChange Speed and Change Tempo are offline renders: set a value, apply, listen, undo, repeat
Learning curveOne screen, four controlsSteeper — it is a professional editor
Song stays on your deviceYes — it runs in your browserYes — it runs on your machine
Free exportWhole song, MP3 or WAV; a short spoken note after the song, croppableExports without a trailing note
File size cap50 MBNo comparable cap on a desktop machine
Tempo without pitch changeNo — tempo and pitch are linked here; the free iOS app moves pitch independentlyYes — Change Tempo holds pitch

The one row that decides most cases

It is the preview row. In Audacity, Change Speed and Change Tempo are effects you apply: pick a number, render, listen, undo if wrong, pick again. Finding the right speed for a song is a loop of guesses. Here the slider plays live — you drag from 100% down to 85% and hear every value on the way, then stop. For the specific task of finding how a song sounds at another speed, live preview is not a small convenience; it is the whole workflow.

50-200% covers the whole useful range, live

The tempo slider here runs from half speed to double speed with pitch linked — twelve semitones down at 50%, twelve up at 200% — and every value in between plays as you drag.

That range contains all the common jobs: slowed edits around 80–90%, sped up versions around 115–135%, nightcore above that, and the extremes for effect. Because pitch follows tempo, the result is the classic turntable-style change — the song gets deeper as it slows and brighter as it speeds up. If you need the other behavior, tempo changed while pitch holds still, that is exactly what Audacity's Change Tempo does and this browser tool does not; the free Y2K Player iOS app also moves pitch independently. We would rather route you correctly than stretch the truth.

A craft note on loudness

Neither slowing nor speeding changes a song's level, so resist the urge to add volume after a tempo change. If you add reverb, that does add energy — keep the mix moderate and play the loudest section once before exporting, in this tool or any other.

When you should still use Audacity

A page like this earns trust by sending you away when that is the right call. Use Audacity, not this tool, when:

You need to cut, trim, or splice — this tool changes whole songs and does not edit regions. You need tempo changed while pitch stays put, in the browser-free comfort of your desktop. You need multitrack work, recording, or any effect beyond reverb. Your file is over 50 MB — Audacity has no such cap. You are batch-processing many files — a desktop editor with macros beats dragging files into a web page one at a time. Audacity's learning curve is real, but it buys you an actual editor. If your task is on that list, install it; it is free and it is good.

And when the browser wins

You have one song and one question — how does it sound slower, faster, or with a room behind it — and you want the answer now, on whatever machine is in front of you, including a phone. No install, live preview, free whole-song export. That is the entire pitch, and it is enough for a lot of real work.

The one-job workflow, start to finish

The player at the top of this page starts at 100% — the song exactly as it is — so every change is yours.

1. Drop an audio file onto the player, or press the demo track. Files up to 50 MB work.
2. Press play, then drag the tempo slider. Playback follows live; the pitch readout shows how far the key moves at each speed.
3. Stop where the song sounds right — anywhere from 50% to 200%.
4. Optional: switch on reverb, choose one of the six rooms, and set the mix to taste.
5. Loop a section on the waveform to check the ends of words and the drum edges.
6. Export MP3 or WAV — the whole song at your settings, free. A short spoken note follows the song on free exports; crop it off if you are sharing the file.

Privacy, since Audacity people ask

Desktop users rightly distrust web tools with their audio. This one processes everything locally in the browser. The song never leaves your device — there is no upload step for it to leave through, which you can confirm with your browser's network panel.

You love changing how songs sound? There is a player for that.

This page handles one file at a time. Y2K Player, the music player for iPhone and iPad behind this site, makes changed speed a property of your library instead of a one-off render.

The app saves each song's settings — every track remembers its own tempo and pitch, including pitch moved independently, which the browser tool does not do. Playlists, offline playback, your files on your device, and 1080p video export over visualizers. No account. Free to use. Pro is one payment — forever.

Questions people actually ask

Straight answers for people deciding between the browser and the editor.

Is this a full replacement for Audacity?
No, and it does not claim to be. Audacity is a complete desktop editor; this tool does one job — speed, pitch, reverb, export — in the browser. For that job it is faster to reach and gives live preview. For editing, recording, or multitrack work, install Audacity.
Do I need to install anything?
No. The tool runs on this page in any modern browser, desktop or phone. That is the core difference from Audacity, which is a desktop application you download and install.
Does my song get uploaded?
No. The song never leaves your device — decoding, processing, and export all run inside your browser, and you can verify in the network panel that no audio is sent anywhere. In that sense it is as private as a desktop editor.
How is the preview different from Audacity's?
Audacity's Change Speed and Change Tempo are offline renders: you set a value, apply it, and listen afterward. Here playback follows the slider while you drag, so you hear every speed on the way and stop at the right one. For finding a speed by ear, that removes the whole apply-listen-undo loop.
Can I change tempo without changing pitch, like Audacity's Change Tempo?
Not in the browser — tempo and pitch are linked here, twelve semitones per doubling, which gives the classic turntable-style sound. Audacity genuinely wins this row on desktop, and the free Y2K Player iOS app moves pitch independently on iPhone and iPad.
Can I cut or trim the song here?
No. This tool processes whole songs and has no region editing. Trimming, splicing, fades, and multitrack arrangements are exactly the jobs Audacity exists for — use it for those.
What formats can I export, and is it free?
MP3 and WAV, whole song, free, no account. One difference to know: free exports here end with a short spoken note after the song, which you can crop off; Audacity's exports carry no such note. The free iOS app also exports without it.
Is there a file size limit?
Yes, 50 MB per file — enough for almost any single song, including most WAVs, but not for long mixes or session files. Audacity on a desktop has no comparable cap, and we point that out in the table.
Does the browser tool work offline?
Yes, once the page has loaded — everything runs locally, so no connection is needed after that. Audacity is fully offline too; on this row the two are equals.
Which one is better for beginners?
For changing one song's speed, this tool — one screen, four controls, nothing to learn. Audacity's steeper learning curve is the fair price of being a real editor. Start here; graduate to Audacity when your task outgrows one job.
What reverb does this tool have?
Six rooms — Air, Room, Chamber, Hall, Plate, Cathedral — with a mix control, all free. It is a simpler model than a full effects chain: pick a space, set how much of it you hear, done.
Can I use both together?
That is often the best workflow: find the right speed here by ear in seconds, export WAV, then do any cutting or detailed work in Audacity on a lossless file. The two tools are good at different halves of the job.

One job, done in the browser

The player above starts at 100%. Drag it and hear your song at every speed on the way — no install, no render loop.

Free to download and keep. Pro is a one-time purchase — buy it once and it never renews.